fix: gpu helper entitlements

[deepak1556]

Fixes https://monacotools.visualstudio.com/DefaultCollection/Monaco/_build/results?buildId=74724

This was bit surprising to see libffmpeg.dylib linked to the gpu helper, but it makes sense because how electron rewrites rpath https://github.com/electron/electron/blob/master/build/config/BUILD.gn

 > otool -l /Applications/Visual\ Studio\ Code\ -\ Insiders.app/Contents/Frameworks/Code\ -\ Insiders\ Helper\ \(GPU\).app/Contents/MacOS/Code\ -\ Insiders\ Helper\ \(GPU\)  

Load command 13
          cmd LC_LOAD_DYLIB
      cmdsize 80
         name @rpath/Electron Framework.framework/Electron Framework (offset 24)
   time stamp 2 Wed Dec 31 16:00:02 1969
      current version 0.0.0
compatibility version 0.0.0

The ideal fix is to sign the libraries inside the Electron framework folder and remove this entitlement, will do that in a follow-up.

[roblourens]

This fixed the issue with launching code for settings export in CI